211010210190 has 128 divisors (see below), whose sum is σ = 606137011200. Its totient is φ = 51927350400.

The previous prime is 211010210189. The next prime is 211010210249. The reversal of 211010210190 is 91012010112.

It is a happy number.

It is a super-2 number, since 2×211010210190² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22638351 + ... + 22647669.

It is an arithmetic number, because the mean of its divisors is an integer number (4735445400).

Almost surely, 2^211010210190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211010210190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303068505600).

211010210190 is an abundant number, since it is smaller than the sum of its proper divisors (395126801010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211010210190 is a wasteful number, since it uses less digits than its factorization.

211010210190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15799 (or 15793 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 211010210190 in words is "two hundred eleven billion, ten million, two hundred ten thousand, one hundred ninety".